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Annotation of 42BSD/usr.lib/learn/editor/L35.2e, revision 1.1

1.1     ! root        1: #print
        !             2: A very powerful construction is ".*",
        !             3: which matches any character (remember '.')
        !             4: repeated any number of times.    For example
        !             5: 
        !             6: s/a.*b/.../
        !             7: 
        !             8: replaces anything of the forms
        !             9: 
        !            10: axyzb,  aaaaaab,   a1234b,  abbbb
        !            11: 
        !            12: since it requires just an 'a' and a 'b'
        !            13: at the ends of the string, with
        !            14: anything at all in between.
        !            15: Or, to throw away everything
        !            16: on a line after the word "stop", you could try
        !            17: 
        !            18: s/stop.*/stop/
        !            19: 
        !            20: In this directory is a file "sentence".
        !            21: Delete everything after
        !            22: the word "last" on the second line of the file.
        !            23: #create Ref
        !            24: This file has a sentence in which
        !            25: this is the last
        !            26: #create sentence
        !            27: This file has a sentence in which
        !            28: this is the last word which should be left.
        !            29: #user
        !            30: #cmp sentence Ref
        !            31: #next
        !            32: 36.1a 10
        !            33: 36.2a 5

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